- 12 Nov, 2015 15 commits
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James Bottomley authored
SCSI queue for 4.4. Signed-off-by:Martin K. Petersen <martin.petersen@oracle.com>
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Gabriel Krisman Bertazi authored
According to SPC-4, in a Mode Select, the PS bit in Mode Pages is reserved and must be set to 0 by the driver. In the sd implementation, function cache_type_store does a Mode Sense, which might set the PS bit on the read buffer, followed by a Mode Select, which receives the same buffer, without explicitly clearing the PS bit. So, in cases where target supports saving the Mode Page to a non-volatile location, we end up doing a Mode Select with the PS bit set, which could cause an illegal request error if the target is checking this. This was observed on a new firmware change, which was subsequently reverted, but this changes sd.c to be more compliant with SPC-4. This patch clears the PS bit in the buffer returned by Mode Select, right before it is used in the Mode Select command. Signed-off-by:
Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Signed-off-by:
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Laurent Vivier authored
As defined in 4.6.9 of SAM-4, the encoding of LUN is on 5 bits (max_lun=32) and the current value is only 8. Set max_lun to IBMVSCSI_MAX_LUN (32). Signed-off-by:
Laurent Vivier <lvivier@redhat.com> Signed-off-by:
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Laurent Vivier authored
As devices with values greater than that are silently ignored, this gives some hints to the sys admin to know why he doesn't see his devices... Signed-off-by:
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Dan Carpenter authored
There is a static checker warning here because "bytes" is controlled by the user and we cap the upper bound with min() but allow negatives. Negative bytes will result in some nasty warning messages but are not super harmful. Anyway, no one needs negative bytes so let's just check for it and return NULL. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Alison Schofield authored
Replace the use of struct timeval and do_gettimeofday() with 64 bit ktime_get_real_seconds. Prevents 32-bit type overflow in year 2038 on 32-bit systems. Driver was using the seconds portion of struct timeval (.tv_secs) to pass a millseconds timestamp to the firmware. This change maintains that same behavior using ktime_get_real_seconds. The structure used to pass the timestamp to firmware is 48 bits and works fine as long as the top 16 bits are zero and they will be zero for a long time..ie. thousands of years. Alternative Change: Add sub second granularity to timestamp As noted above, the driver only used the seconds portion of timeval, ignores the microseconds portion, and by multiplying by 1000 effectively does a <<10 and always writes zero into timestamp[0]. The alternative change would pass all the bits to the firmware: struct timespec64 ts; ktime_get_real_ts64(&ts); timestamp = ts.tv_sec * MSEC_PER_SEC + ts.tv_nsec / NSEC_PER_MSEC; Signed-off-by:Alison Schofield <amsfield22@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Tina Ruchandani authored
struct mvumi_hs_page2 stores a "seconds_since1970" field which is of type u64. It is however, written to, using 'struct timeval' which has a 32-bit seconds field and whose value will overflow in year 2038. This patch uses ktime_get_real_seconds() instead since it provides a 64-bit seconds value, which is 2038 safe. Signed-off-by:
Tina Ruchandani <ruchandani.tina@gmail.com> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
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Tim Gardner authored
drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous': drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] WARN_ON(!length > 0); gcc version 5.2.1 Signed-off-by:
Tim Gardner <tim.gardner@canonical.com> Cc: Jayamohan Kallickal <jayamohan.kallickal@avagotech.com> Cc: Minh Tran <minh.tran@avagotech.com> Cc: John Soni Jose <sony.john-n@avagotech.com> Cc: "James E.J. Bottomley" <JBottomley@odin.com> Reported-by:
Joel Stanley <joel@jms.id.au> Reviewed-by:
Manoj Kumar <manoj@linux.vnet.ibm.com> Signed-off-by:
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Vitaly Kuznetsov authored
The only user of scsi_prep_async_scan() is scsi_scan_host() and it handles the situation correctly. Move 'called twice' reporting to debug level as well. The issue is observed on Hyper-V: on any device add/remove event storvsc driver calls scsi_scan_host() and in case previous scan is still running we get the message and stack dump on console. Signed-off-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by:
K. Y. Srinivasan <kys@microsoft.com> Tested-by:
Alex Ng <alexng@microsoft.com> Signed-off-by:
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Sreekanth Reddy authored
Bump mpt3sas driver version to 09.102.00.00 Signed-off-by:
Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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Sreekanth Reddy authored
Modified the mpt3sas driver to have a single driver module which supports both SAS 2.0 & SAS 3.0 HBA devices. * Added SAS 2.0 HBA device IDs to the mpt3sas_pci_table pci table. * Created two separate SCSI host templates for SAS2 and SAS3 HBAs so that, during the driver load time driver can use corresponding host template(based the pci device ID) while registering a scsi host adapter instance for that pci device. * Registered two IOCTL devices, mpt2ctl is for SAS2 HBAs & mpt3ctl for SAS3 HBAs. Also updated the code to make sure that mpt2ctl device processes only those ioctl cmds issued for the SAS2 HBAs and mpt3ctl device processes only those ioctl cmds issued for the SAS3 HBAs. * Added separate indexing for SAS2 and SAS3 HBAs. * Replaced compile time check 'MPT2SAS_SCSI' to run time check 'hba_mpi_version_belonged' whereever needed. * Aliased this merged driver to mpt2sas using MODULE_ALIAS. * Moved global varaible 'driver_name' to per adapter instance variable. * Created two raid function template and used corresponding raid function templates based on the run time check 'hba_mpi_version_belonged'. * Moved mpt2sas_warpdrive.c file from mpt2sas to mpt3sas folder and renamed it as mpt3sas_warpdrive.c. * Also renamed the functions in mpt3sas_warpdrive.c file to follow current driver function name convention. * Updated the Makefile to build mpt3sas_warpdrive.o file for these WarpDrive-specific functions. * Also in function mpt3sas_setup_direct_io(), used sector_div() API instead of division operator (which gives compilation errors on 32 bit machines). * Removed mpt2sas files, mpt2sas directory & mpt3sas_module.c file. * Added module parameter 'hbas_to_enumerate' which permits using this merged driver as a legacy mpt2sas driver or as a legacy mpt3sas driver. Here are the available options for this module parameter: 0 - Merged driver which enumerates both SAS 2.0 & SAS 3.0 HBAs 1 - Acts as legacy mpt2sas driver, which enumerates only SAS 2.0 HBAs 2 - Acts as legacy mpt3sas driver, which enumerates only SAS 3.0 HBAs * Removed mpt2sas entries from SCSI's Kconfig and Makefile files. Signed-off-by:
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Sreekanth Reddy authored
Bump the mpt2sas driver version to 20.102.00.00 and Bump the mpt3sas driver version to 9.101.00.00. Signed-off-by:
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Sreekanth Reddy authored
setpci reset on nytro warpdrive card along with sysfs access and cli ioctl access resulted in kernel oops 1. pci_access_mutex lock added to provide synchronization between IOCTL, sysfs, PCI resource handling path 2. gioc_lock spinlock to protect list operations over multiple controllers This patch is ported from commit 6229b414 ("mpt2sas: setpci reset kernel oops fix"). Signed-off-by:
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Sreekanth Reddy authored
Added OEM Gen2 PnP ID branding names from mpt2sas driver. Signed-off-by:
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Sreekanth Reddy authored
The fw_event_work struct is concurrently referenced at shutdown. Add a refcount to protect it and refactor the code to use it. Additionally, refactor _scsih_fw_event_cleanup_queue() such that it no longer iterates over the list without holding the lock since _firmware_event_work() concurrently deletes items from the list. This patch is ported from commit 008549f6 ("mpt2sas: Refcount fw_events and fix unsafe list usage"). These changes are also required for mpt3sas. Signed-off-by:
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- 11 Nov, 2015 14 commits
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Sreekanth Reddy authored
sas_device objects can be referenced concurrently throughout the driver. We need a way to make sure threads can't delete them out from under each other. This patch adds the refcount and refactors the code to use it. Additionally, we cannot iterate over the sas_device_list without holding the lock or we risk corrupting random memory if items are added or deleted as we iterate. This patch refactors _scsih_probe_sas() to use the sas_device_list in a safe way. This patch is ported from the following mpt2sas driver commit d224fe0d ("mpt2sas: Refcount sas_device objects and fix unsafe list usage"). Signed-off-by:
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Sreekanth Reddy authored
A new sysfs shost attribute called "BMR_status" is implemented to report Backup Rail Monitor status. This attribute is located in: /sys/class/scsi_host/host#/BMR_status When reading this adapter attribute, the driver will output the state of GPIO[24]. It returns "0" if BMR is healthy and "1" for failure. If it returns an empty string then it means that there was an error while obtaining the BMR status. Check dmesg for what error has occurred. This sysfs shost attribute is mainly for WarpDrive controllers. This commit is a port of 6c265660 ("mpt2sas: Provide sysfs attribute to report Backup Rail Monitor Status"). Signed-off-by: -
Sreekanth Reddy authored
Ported the following list of WarpDrive-specific patches: 1. commit 0bdccdb0 ("mpt2sas: WarpDrive New product SSS6200 support added") 2. commit 82a45258 ("mpt2sas: WarpDrive Infinite command retries due to wrong scsi command entry in MPI message") 3. commit ba96bd0b ("mpt2sas: Support for greater than 2TB capacity WarpDrive") 4. commit 4da7af94 ("mpt2sas: Do not retry a timed out direct IO for Warpdrive") 5. commit daeaa9df ("mpt2sas: Avoid type casting for direct I/O commands"). Also set the mpt2_ioctl_iocinfo adapter_type to: 1. MPT3_IOCTL_INTERFACE_SAS3 for Gen3 HBAs 2. MPT2_IOCTL_INTERFACE_SAS2_SSS6200 for Warp Drive 3. MPT2_IOCTL_INTERFACE_SAS2 for other Gen2 HBAs Signed-off-by:
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Sreekanth Reddy authored
This patch stops the driver to invoke kthread (which remove the dead ioc) for some time while EEH recovery has started. This patch is a port of commit b4730fb6 ("mpt2sas: fix for driver fails EEH, recovery from injected pci bus error")'. Signed-off-by:
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Sreekanth Reddy authored
1. Do not enable MSI-X vectors for SAS2008 B0 controllers 2. Enable a single MSI-X vector for the following controller: a. SAS2004 b. SAS2008 c. SAS2008_1 d. SAS2008_2 e. SAS2008_3 f. SAS2116_1 g. SAS2116_2 3. Enable Combined Reply Post Queue Support (i.e. 96 MSI-X vectors) for Gen3 Invader/Fury C0 and above revision HBAs 4. Enable Combined Reply Post Queue Support (i.e. 96 MSI-X vectors) for all Intruder and Cutlass HBAs Signed-off-by:
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Sreekanth Reddy authored
Avoid sending PHYDISK_HIDDEN RAID action requests to SAS2 controllers since they don't support it. Also enable fast_path only for SAS3 HBAs. Signed-off-by:
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Sreekanth Reddy authored
Gen2 HBAs use MPI scatter-gather lists whereas Gen3 HBAs use IEEE scatter-gather lists. Modify the common code part in such a way that it will build IEEE SGL tables for Gen3 HBAs and MPI SGL tables for Gen2 HBAs. Signed-off-by:
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Sreekanth Reddy authored
Currently there is a logging level option provided for each of our drivers in the kernel configuration utility. Users can enable this option to get more verbose information. By default it is enabled. Only when this option is enabled will the functions which display the required information get compiled in. As we are merging the both drivers we can no longer provide this configuration option. Remove the SCSI_MPTXSAS_LOGGING entry from Kconfig and unconditionally enable logging (by removing the #ifdef CONFIG_SCSI_MPT3SAS_LOGGING preprocessor check conditions) so that all functions which are defined to display more verbose information get compiled in. Signed-off-by:
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Sreekanth Reddy authored
1. Use 'hba_mpi_version_belonged' IOC varable to uniquely identify each individual generation driver functionality at runtime. 2. Declare global variable 'driver_name' and use this variable while reserving PCI regions and while allocating the IRQs. Signed-off-by:
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Sreekanth Reddy authored
Remove .c and .h files which are no longer needed from mpt2sas driver. We are reusing this code from mpt3sas. Signed-off-by:
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Sreekanth Reddy authored
1. Create a mpt2sas_module.c file for mpt2sas where GEN2 HBA devices register with PCI, SML, IOCTL subsystems. 2. Updated the Makefile to use the object files from mpt3sas folder. 3. Defined a compilation flag SCSI_MPT2SAS which can be used to not include those sections of code from mpt3sas driver which are not required for mpt2sas driver. 4. Inherited automatic diag buffer feature from mpt3sas driver. Signed-off-by:
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Sreekanth Reddy authored
Created a mpt3sas_module.c file for mpt3sas driver where it can register SAS3 HBA devices with PCI, SML, IOCTL subsystems. Also removed the corresponding interfaces from mpt3sas_scsih.c file. Signed-off-by:
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Sreekanth Reddy authored
1. Added mpt2sas driver related macros in mpt3sas header files 2. Made scsi host's, raid class', pci's, ioctl's callback functions global so that both drivers can use them. Signed-off-by:
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Christoph Hellwig authored
Use a single set of the hardware description headers instead of having them in the source tree twice. Signed-off-by:
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- 10 Nov, 2015 11 commits
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Tina Ruchandani authored
Function stex_gettime uses 'struct timeval' whose tv_sec value will overflow on 32-bit systems in year 2038 and beyond. This patch replaces the use of struct timeval and do_gettimeofday with ktime_get_real_seconds, which returns a 64-bit seconds value. Suggested-by:
James Bottomley <JBottomley@Odin.com>
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Peter Oberparleiter authored
Writing a number to /sys/bus/scsi/devices/<sdev>/queue_ramp_up_period returns the value of that number instead of the number of bytes written. This behavior can confuse programs expecting POSIX write() semantics. Fix this by returning the number of bytes written instead. Signed-off-by:
Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Reviewed-by:
Ewan D. Milne <emilne@redhat.com> Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
Chad Dupuis <chad.dupuis@qlogic.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Chad Dupuis authored
Explicit logouts from bnx2fc were causing race conditions in either returning stale SCSI commands or not allowing a target to log back in. Signed-off-by:
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Chad Dupuis authored
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Chad Dupuis authored
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Chad Dupuis authored
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Chad Dupuis authored
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Seymour, Shane M authored
Change st driver to allow enabling or disabling debug output via sysfs file /sys/bus/scsi/drivers/st/debug_flag. Previously the only way to enable debug output was: 1. loading the driver with the module parameter debug_flag=1 2. an ioctl call (this method was also the only way to dynamically disable debug output). To use the ioctl you need a second tape drive (if you are actively testing the first tape drive) since a second process cannot open the first tape drive if it is in use. The this change is only functional if the value of the macro DEBUG in st.c is a non-zero value (which it is by default). Signed-off-by:
Shane Seymour <shane.seymour@hpe.com> Reviewed-by:
Laurence Oberman <oberman.l@gmail.com> Acked-by:
Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by:
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Sebastian Herbszt authored
Signed-off-by:
Sebastian Herbszt <herbszt@gmx.de> Acked-by:
Vasu Dev <vasu.dev@intel.com> Reviewed-by:
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Christoph Hellwig authored
This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by:
Jens Axboe <axboe@kernel.dk> Reviewed-by:
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